136504880 has 20 divisors (see below), whose sum is σ = 317374032. Its totient is φ = 54601920.

The previous prime is 136504853. The next prime is 136504889. The reversal of 136504880 is 88405631.

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 136504880.

It is not an unprimeable number, because it can be changed into a prime (136504889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 853076 + ... + 853235.

Almost surely, 2^136504880 is an apocalyptic number.

136504880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

136504880 is an abundant number, since it is smaller than the sum of its proper divisors (180869152).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

136504880 is a wasteful number, since it uses less digits than its factorization.

136504880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1706324 (or 1706318 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 35.

The square root of 136504880 is about 11683.5302884017. The cubic root of 136504880 is about 514.8918992638.

The spelling of 136504880 in words is "one hundred thirty-six million, five hundred four thousand, eight hundred eighty".